In have built a couple of mda library files which I am then referencing from my main Access application (i.e. using Tools -> References from within the IDE).
Is ther
To get the file path for the access application
CurrentProject.Path & "\"
Then just add the other files into the same directory and get them by name. i.e.
Dim filepath As String filepath = CurrentProject.Path & "\name_of_file.mda"